Question # 1

A protein found in the rod cells of retina of eye is:

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Trypsin

Pepsin

Rhodopsin

None of these

A membrane-bounded disc is formed in plant cell to divide cytoplasm, this is called:

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Chloroplast

Phragmoplast

Leucoplast

Chromoplast

Which of these cellular organelles have their own DNA?

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Chloroplast

Nucleus

Mitochondria

All of these

Enzymatic reactions are _______ of times faster than uncatalyzed reactions:

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Millions

Hundreds

Thousands

Billion

Kingdom Monera include.

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Bacteria

Euglena

Fungi

Plants

The size of a virus is _____________

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40-50 nm

20-40 nm

10-40 nm

30-50 nm

In which stage of the cell cycle most cells spend their lives?

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Prophase

Metaphase

Interphase

Telohase

Which of the following contains deoxygenated blood in an adult human?

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Left atrium

Pulmonary artery

Pulmonary vein

All of the above

Pulmonary veins originate from .............. .

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Liver

Lungs

Kidney

Intestine

Logical consequences of hypothesis is,

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Experiment

Deduction

Observations

Theory

Which food group is our body's best source of energy?

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Meat Group

Fats,oils and sweets

Breads and cereals

Milk and cheese

Sir Alexander Fleming was discovered:

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Antibiotics

Analgesic

Penicillin

Antiseptics

Abiotic component of ecosystem is.

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Producers

Herbivores

carnivore

Oxygen

How many pairs of homologous chromosomes are present in human body cells.

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22

23

24

25

Ectoparasite is:

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Ascaris

Amoeba

Plasmodium

Leech

A DNA molecule consists of______ polynucleotide strands.

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2

3

4

5

In which of the following disease, the patient has usually lost 50% to 70% of his/her lung tissue when symptoms appears?

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Pneumonia

Asthma

Emphy sema

Bronchitis

The process of gaseous exchange involves.

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Break down of C-H bounds to yield energy.

Physical movements that take air ain and our of body

Getting oxygen from the air and removing carbon dioxide

Transport of oxygen by the blood to different parts of the body.

Digitalis obtained from the leaf of .............. plant.

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"Datura

Foxglove

Cannabis

Cactus

Essential process for continuation of species is:

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Reproduction

Cloning

Respiration

Locomotion

Cytocine always makes pair with :

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Guanine

Hydrogen

Adenine

Thymine

How many bones make our skull?

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14

22

24

26

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